1, the new machine must be equipped with die head-spinneret after a while. It's like driving a new car.
2. The spinneret hole is not smooth enough
3, the material is unstable
4. No filter was added
5. The bucket was not cleaned.
6. Many spinneret die materials on the market are not standard materials, and some low-end die steels are used instead. There will be some subtle cracks invisible to the naked eye during use, and the aperture processing is rough and the accuracy is poor. Use directly on the machine without polishing. The spinneret is uneven and has poor toughness. The spinneret has different thickness and is easy to crystallize. The material has high ash content and impurities.
The above answers from Qingdao Zhongxin Huamei hope to help you.